Adaptive radio transceiver with a local oscillator
First Claim
1. A wireless spread spectrum communications device, comprising:
- a local oscillator comprising;
a quadrature oscillator configured to generate a first signal having a first frequency,a quadrature frequency divider configured to generate a second signal from the first signal, the second signal having a second frequency, anda first quadrature mixer configured to mix the first signal and the second signal and configured to provide a third signal having a third frequency; and
a transmitter that transmits wireless radio signals, wherein the transmitter is operatively coupled to the local oscillator, wherein the transmitter comprises a second quadrature mixer configured to mix the third signal and a fourth signal, andwherein the local oscillator and the transmitter are integrated on a single integrated circuit chip.
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Accused Products
Abstract
An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a controller, and a self-testing unit. All of these components can be packaged for integration into a single IC including components such as filters and inductors. The controller for adaptive programming and calibration of the receiver, transmitter and LO generator. The self-testing unit generates is used to determine the gain, frequency characteristics, selectivity, noise floor, and distortion behavior of the receiver, transmitter and LO generator. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.
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Citations
20 Claims
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1. A wireless spread spectrum communications device, comprising:
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a local oscillator comprising; a quadrature oscillator configured to generate a first signal having a first frequency, a quadrature frequency divider configured to generate a second signal from the first signal, the second signal having a second frequency, and a first quadrature mixer configured to mix the first signal and the second signal and configured to provide a third signal having a third frequency; and a transmitter that transmits wireless radio signals, wherein the transmitter is operatively coupled to the local oscillator, wherein the transmitter comprises a second quadrature mixer configured to mix the third signal and a fourth signal, and wherein the local oscillator and the transmitter are integrated on a single integrated circuit chip. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification